Lennox 14A51 Pressure Switch 320819-301 Whether you're performing a routine

Whether you're performing a routine maintenance overhaul or an emergency blower motor repair

providing high-interchangeability and a stable resistance output for accurate environmental monitoring

Can this thermostat be used in dual-element systems

With a fixed open temperature of 175°F and a fixed close temperature of 145°F

Lennox 14A51 Pressure Switch 320819-301 Whether you're performing a routineEngineered as a high precision safety and sequencing component, the Lennox 14A51 Pressure Switch provides critical draft verification for two stage gas furnaces. This OEM sensor features a factory calibrated set point high of 0. 74" W. C. and a set point low of 0. 41" W. C., ensuring the inducer motor maintains the exact static pressure required for safe combustion. Built to withstand the harsh vibration and thermal cycles of an 80% to 95% efficiency